A general view of the area affected by a fire after the explosion of a truck loaded with gas tanker near of Ecatepec city, Mexico, 07 May 2013. According the authorities the blast left at least 18 people dead and some 36 injured. The blast at about 5:30 am (1030 GMT) in Ecatepec, a northern suburb of Mexico City, damaged 20 homes, four of them substantially, Salvador Neme, citizen security minister for the state of Mexico bordering the capital, told the radio station Formato 21. It also damaged 15 vehicles, he said.